We consider the Su-Schrieffer-Heeger (SSH) model in a one-dimensional (1D) lattice with \(N = L/2\)  unit cells [1]}, [2]}, each unit cell consisting of 2 fermions, as illustrated in Fig. REF A. Its Hamiltonian reads
\(\mathcal {H}_{\text{SSH}}^{\text{F}}=-J_1\sum _{i=1}^N c_{2i-1}^{\dag } c_{2i} - J_2\sum _{i=1}^{N-1} c_{2i}^{\dag } c_{2i+1} + h.c,\) 
